Polaroid Filter
Product Code : LSK-PL-10369
Polaroid Filter (SKU LSK-PL-10369) is a matched pair of polarising filters with printed scales, used to study how light transmission changes as one filter is turned over the other. It suits secondary-school and college optics lessons on polarisation. Each pair is produced by Science Lab Supplies in its own works at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and is quoted straight to schools, colleges, tender contractors and distributors.
Specifications
Scale markings and film thickness of the Polaroid pair are set out row by row below. In short, two special Polaroid filters each carry a printed scale, one circular and marked in degrees, the other a simple alignment cross, and the 0.18 mm film lets the rotation of one filter over the other be read directly.
| Specification | Value |
|---|---|
| SKU | LSK-PL-10369 |
| Contents | Pair of special Polaroid filters |
| Scales | A scale printed on each filter |
| First filter | Circular scale marked in degrees |
| Second filter | Simple cross for aligning one filter over the other |
| Polaroid film thickness | 0.18 mm |
| Measurement | Rotary displacement read on the scale |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Polaroid Filter
The pair shows that light passing through one polarising filter becomes plane-polarised, and that turning a second filter over it changes how much light gets through. It suits the wave optics chapter of CBSE/NCERT Class 12 physics and introductory optics practicals in B.Sc. and diploma physics courses.
- Class 12 physics (Wave Optics): polarisation as evidence that light is a transverse wave, with a lamp such as the Parallel Beam Light Source shining through the pair.
- Reading the angle between the filters on the degree scale while the transmitted brightness changes.
- Showing that transmission falls to a minimum when the filters are crossed, then repeating the test with the 50 mm glass-protected Polaroid Disc Mounted.
Standard Scope of Supply
Each set comprises two Polaroid filters made with 0.18 mm film: one printed with the circular scale in degrees and one printed with the alignment cross. A lamp or other light source for the lesson can be added to the same quotation if the laboratory needs one.
Packing, MOQ and Lead Time
Quotations can cover a single pair for a teacher's demonstration or enough pairs for every bench in an optics class. Each quotation from Science Lab Supplies sets out the packing, delivery time and price for the quantity requested, and other optics lab equipment for schools can be listed on the same quotation.
Holding an Importer-Exporter Code as a registered exporter, Science Lab Supplies can ship to buyers in Saudi Arabia, Oman, the Philippines, Nepal, Bangladesh and Zambia. To have polarisation sets priced, send the bench count through the contact page, drop the pair into the enquiry cart, or check the lab tender page when the purchase runs through a formal tender.
Frequently Asked Questions
What does the Polaroid Filter pair demonstrate?
It demonstrates polarisation of light. As the upper filter is rotated over the lower one, the amount of light transmitted changes, and the angle of rotation is read on the degree scale.
How is the angle between the two filters measured?
One filter carries a circular scale marked in degrees and the other a simple cross. Laying the cross filter over the scale filter lets students read the rotary displacement directly.
Is Science Lab Supplies the manufacturer or a trader?
These filter pairs leave the company's own production unit in Saha, Ambala, India, which makes Science Lab Supplies their manufacturer; prices and delivery times are therefore quoted by the maker itself rather than through an intermediary.
Can the filters be quoted for a whole class?
Yes. Give the number of pairs and the delivery location, and the quotation will state packing, delivery time and price for that quantity, with any other optics items listed alongside.
Related Optics and Polarisation Equipment
These items from the Physics Lab and Light and Optics ranges take a polarisation lesson further into colour, diffraction, dispersion and ray work, and one set covers wave optics as a whole. Each of them can be listed on the same quotation as the Polaroid pair when an optics bench is being equipped.
- Polarizing Filters — linear polarising filters mounted in 35 mm square frames, for visible and near-infrared light.
- Color Filter Set — six 8 x 10 in filters in the primary and secondary colours.
- Diffraction Gratings with Holder — three 20 x 10 mm gratings of 100, 300 and 600 lines/mm between glass plates.
- Raybox with Accessories — light source under an adjustable lid, with two-slit, three-slit and broad-slit masks.
- Optics Set OW1, Wave Optics — materials for a selection of 14 wave-optics experiments, stored in a case.
- Apparatus for Demonstrating Reflection, Refraction, Polarization and Diffraction using Microwaves — 10.7 GHz Gunn-diode transmitter (wavelength 2.8 cm) with a matching receiver and probe detector.
- Glass Prism (Equilateral, 50 × 50 mm) — equilateral prism for demonstrating dispersion and measuring refractive index.
Browse the full Physics Lab range, the Light and Optics range, or all physics lab equipment.
Last updated: 22 October 2026
